32290232 has 32 divisors (see below), whose sum is σ = 66134880. Its totient is φ = 14689920.

The previous prime is 32290231. The next prime is 32290241. The reversal of 32290232 is 23209223.

It is a super-2 number, since 2×32290232² = 2085318165227648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32290198 and 32290207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32290231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5198 + ... + 9570.

It is an arithmetic number, because the mean of its divisors is an integer number (2066715).

Almost surely, 2^32290232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32290232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33067440).

32290232 is an abundant number, since it is smaller than the sum of its proper divisors (33844648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32290232 is a wasteful number, since it uses less digits than its factorization.

32290232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4463 (or 4459 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 32290232 is about 5682.4494718387. The cubic root of 32290232 is about 318.4371451912.

Adding to 32290232 its reverse (23209223), we get a palindrome (55499455).

The spelling of 32290232 in words is "thirty-two million, two hundred ninety thousand, two hundred thirty-two".